1. 當(dāng)主句謂語動(dòng)詞是find，see，watch，hear等感官動(dòng)詞時(shí)，從句常簡化為“賓語+賓補(bǔ)”結(jié)構(gòu)，賓補(bǔ)為不帶to的不定式或V-ing形式。如：
    She found that the wallet lay/was lying on the ground. →She found the wallet lie/lying on the ground.
    2. 當(dāng)主句謂語動(dòng)詞是hope，wish，decide，forget，plan，agree等，且主句主語與從句主語相同時(shí)，從句可簡化為不定式結(jié)構(gòu)。如：
    She agreed that she could help me with my maths. →She agreed to help me with my maths.
    3. 在連接代詞/副詞引導(dǎo)的賓語從句中，當(dāng)從句主語與主句主語或間接賓語一致時(shí)，賓語從句可簡化為“連接代詞/副詞+不定式”結(jié)構(gòu)。如：
    Can you tell me how I can get to the station?→Can you tell me how to get to the station?